* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  font-family: "Microsoft YaHei", sans-serif;
}

#app {
  width: 100%;
  height: 100%;
  background: #f7f7f7;
}